Fuse Block Circuit Breakers

[B_to_C]

I'm having a problem with my brake lights. They will work flawlessly in the shop while I test them for hours (trying to get them to blow a fuse). But when I go out on the road the fuse blows within a couple of hours. I have followed the wires all the way from the pedal to the lights, but I can't find a short. However my best theory so far is that some bump in the road causes the fuse to blow.

Would it be OK to use a circut breaker (like the ones used for "PWR" and ACC PWR" on the fuse block to cover this situation until I can get the wiring properly fixed? I have already spent about $12 replacing the fuses and don't want to waste any more fuses when I know I won't have the time to fix this for another week.

 

[5280k5]

I think so as as long as it's pretty low rating, you don't want the short to have power for very long while the circuit breaker is heating up. I actually use a circuit breaker type tool at work to trace out shorts instead of replacing fuses. Your problem sure sounds like a chaffed wire somewhere, may be just a tiny little spot the size of a pin head but it can stil short to ground.

 

[BLZN4FN]

I 2nd what the poser above me said

 

[mrk5]

You know there was a lot of that wire you used. What about running new wire just in case there's a problem like Brigham described. Not like that wire cost you anything.